From 773d404ee2b99797763012a32b317422ac18d64e Mon Sep 17 00:00:00 2001
From: Rob Landley <rob@landley.net>
Date: Mon, 26 Apr 2021 05:09:57 -0500
Subject: Bugfix: sed s command couldn't skip initial match.

---
 toys/posix/sed.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'toys')

diff --git a/toys/posix/sed.c b/toys/posix/sed.c
index 9bd05034..d5a4a833 100644
--- a/toys/posix/sed.c
+++ b/toys/posix/sed.c
@@ -443,7 +443,7 @@ static void sed_line(char **pline, long plen)
         // If we're replacing only a specific match, skip if this isn't it
         off = command->sflags>>4;
         if (off && off != ++count) {
-          memcpy(l2+l2used, rline, match[0].rm_eo);
+          if (l2) memcpy(l2+l2used, rline, match[0].rm_eo);
           l2used += match[0].rm_eo;
           rline += match[0].rm_eo;
 
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